Mega Crop 2 part for flower feeding schedule ?

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benjones

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afternoon all

i am about to enter flowering on my second run . i am using coco , 5 gallon pots , with mega crop 2 part ( latest version )

for veg i kept the A and B parts pretty equal , used silica , epsom salts , fulvic acid

the greenleaf calculator says i should be a little under on part B for flowering than part A ( about 9% less )

so my feed will be for flowering

RO water topped up with tap water to 0.2 EC
0.1-0.2 EC calmag ( should i use at every feed ? if not , how do i know when to use it , i will add more MC if i don't use it )
MC A and B 0.9ish EC
sweet candy 0.1/0.2 EC ( should i use at every feed or just once a week or not at all ? , again i will use more MC when/if i don't use it )
fulvic acid
epsom salts at 1gram to 1 gallon .

i aim for an EC of 1.6 , if it's too high i top up with RO water , then PH to 5.9

my reservoir is about 28 gallons , i usually have to add about 35 ish grams of MC A and 35grams of MC B to get to 1.6 after everything else is added ( in the order above ) . i did this all the way through my last grow and kept it around 1.6 , when i went over this i got leaf burn and a few problems on the leaves . maybe i added too much calmag or something . the greenleaf calculator says i should be adding 137g A and 126g B , which to me is way to much .

should i just stick to the EC i am aiming for all the way through or should i raise it gradually . i know some people go by grams per gallon and keep raising it each week

i didn't add a PK boost last time , the plants turned out nice but the drying was not up to par as my AC broke and i think it dried too fast

i know some people taper off the A and B part but i don't know when to do this .

i appreciate any advice , i am trying to understand what is needed and when but i am not quite there yet , @Aqua Man helped me last time , what do you think , should i stick with this ?
 
Aqua Man

Aqua Man

26,480
638
afternoon all

i am about to enter flowering on my second run . i am using coco , 5 gallon pots , with mega crop 2 part ( latest version )

for veg i kept the A and B parts pretty equal , used silica , epsom salts , fulvic acid

the greenleaf calculator says i should be a little under on part B for flowering than part A ( about 9% less )

so my feed will be for flowering

RO water topped up with tap water to 0.2 EC
0.1-0.2 EC calmag ( should i use at every feed ? if not , how do i know when to use it , i will add more MC if i don't use it )
MC A and B 0.9ish EC
sweet candy 0.1/0.2 EC ( should i use at every feed or just once a week or not at all ? , again i will use more MC when/if i don't use it )
fulvic acid
epsom salts at 1gram to 1 gallon .

i aim for an EC of 1.6 , if it's too high i top up with RO water , then PH to 5.9

my reservoir is about 28 gallons , i usually have to add about 35 ish grams of MC A and 35grams of MC B to get to 1.6 after everything else is added ( in the order above ) . i did this all the way through my last grow and kept it around 1.6 , when i went over this i got leaf burn and a few problems on the leaves . maybe i added too much calmag or something . the greenleaf calculator says i should be adding 137g A and 126g B , which to me is way to much .

should i just stick to the EC i am aiming for all the way through or should i raise it gradually . i know some people go by grams per gallon and keep raising it each week

i didn't add a PK boost last time , the plants turned out nice but the drying was not up to par as my AC broke and i think it dried too fast

i know some people taper off the A and B part but i don't know when to do this .

i appreciate any advice , i am trying to understand what is needed and when but i am not quite there yet , @Aqua Man helped me last time , what do you think , should i stick with this ?
Sounds good but dont change anything until after week 3 brother
 
GrimReffer

GrimReffer

390
93
afternoon all

i am about to enter flowering on my second run . i am using coco , 5 gallon pots , with mega crop 2 part ( latest version )

for veg i kept the A and B parts pretty equal , used silica , epsom salts , fulvic acid

the greenleaf calculator says i should be a little under on part B for flowering than part A ( about 9% less )

so my feed will be for flowering

RO water topped up with tap water to 0.2 EC
0.1-0.2 EC calmag ( should i use at every feed ? if not , how do i know when to use it , i will add more MC if i don't use it )
MC A and B 0.9ish EC
sweet candy 0.1/0.2 EC ( should i use at every feed or just once a week or not at all ? , again i will use more MC when/if i don't use it )
fulvic acid
epsom salts at 1gram to 1 gallon .

i aim for an EC of 1.6 , if it's too high i top up with RO water , then PH to 5.9

my reservoir is about 28 gallons , i usually have to add about 35 ish grams of MC A and 35grams of MC B to get to 1.6 after everything else is added ( in the order above ) . i did this all the way through my last grow and kept it around 1.6 , when i went over this i got leaf burn and a few problems on the leaves . maybe i added too much calmag or something . the greenleaf calculator says i should be adding 137g A and 126g B , which to me is way to much .

should i just stick to the EC i am aiming for all the way through or should i raise it gradually . i know some people go by grams per gallon and keep raising it each week

i didn't add a PK boost last time , the plants turned out nice but the drying was not up to par as my AC broke and i think it dried too fast

i know some people taper off the A and B part but i don't know when to do this .

i appreciate any advice , i am trying to understand what is needed and when but i am not quite there yet , @Aqua Man helped me last time , what do you think , should i stick with this ?
I love mega crop, I don’t add any extra calmag to mine but if it worked well last time I would just try and repeat. I tend to agree with you that the mega crop feed schedule seems a bit high and I’m always running lower than they recommend. I start tapering off my nutrients around week 8 and slowly come down trying to get my EC to .5 by the time I’m ready to harvest.
 
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benjones

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63
Hi @Aqua Man

I hope you are well

i have stuck with the feeding as above and have fed at 1.6EC apart from 4 days ago i fed at 1.0 because the run off EC was hitting 1.8 and there was a tiny amount of tip burn .

i am using a different coco from last time and the PH run off is always around 6.6 ( 5.9 going in ) and even though i gave it a good rinse before using it and another rinse before flowering it seems a bit stubborn to get it lower, but the plants look ok so i have left it . apart from the run off they seem happy .

i would greatly appreciate it if you could help me out with a feeding schedule for the next few weeks please mate
 
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benjones

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benjones

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these pics are 2 days after the light feed , they lightened up a little bit after the lower feed , but seem to have got a bit of colour back today after i fed them at 1.6 on the next feed
 
Aqua Man

Aqua Man

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What amounts of what nutrients are you running? Still just the a and b?
what do you have for additives?
 
B

benjones

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sorry for the late reply @Aqua Man

yes just the mega crop A and B . every 2 feeds i reduce mega crop and add in the bud candy ( 0.2 EC )
 
Aqua Man

Aqua Man

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638
i am still using epsom salts at 1gram to 1 gallon
Yup that sounds good. With the higher K if you notice them getting a bit light just up the EC by 0.2 thats just because as the ratios change you will have leas nitrogen. So to compensate you up the ppm.

how much bud candy are you adding now? if your at half dose you can cut the mag sulphate as bud candy is potassium sulphate. But if you atop the bud candy start the mag sulphate again
 
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benjones

361
63
Yup that sounds good. With the higher K if you notice them getting a bit light just up the EC by 0.2 thats just because as the ratios change you will have leas nitrogen. So to compensate you up the ppm.

how much bud candy are you adding now? if your at half dose you can cut the mag sulphate as bud candy is potassium sulphate. But if you atop the bud candy start the mag sulphate again
i see , many thanks.

i add about 0.7g of bud candy per gallon at every second feed , but i add the epsom salt on every feed .

is it ok to alternate the epsom salts and bud candy ?
 
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benjones

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"With the higher K if you notice them getting a bit light just up the EC by 0.2"

is that upping the EC by 0.2 by using mega crop A and B ?

i think on the last grow i was adding about 36g of each for my reservoir but now i am adding about 30grams of A and 27grams of B , so i might have to add more , i was just trying to avoid the tip burn i got last time
 
Aqua Man

Aqua Man

26,480
638
"With the higher K if you notice them getting a bit light just up the EC by 0.2"

is that upping the EC by 0.2 by using mega crop A and B ?

i think on the last grow i was adding about 36g of each for my reservoir but now i am adding about 30grams of A and 27grams of B , so i might have to add more , i was just trying to avoid the tip burn i got last time
Yeah the pains of dialling things in. Ut your going about it right… its better to start to low and work up. If you do it the other way it’s usually more damaging and takes longer to dial in
 
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benjones

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thanks very much for your help @Aqua Man

will i need to add monopotassium phosphate at weeks 4-6 for a PK boost or do we see how they look at that point ?
 
Aqua Man

Aqua Man

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638
thanks very much for your help @Aqua Man

will i need to add monopotassium phosphate at weeks 4-6 for a PK boost or do we see how they look at that point ?
Nope imo at this stage P wont help any but K demand will keep going up. Personally i feel that P is important through veg and just before flower until about week 3. You have the K boost in bud candy so you should be good
 
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benjones

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ahh i think i understand. by increasing the EC through A and B and keeping the ratios as it is i will naturally increase the K

is that right ?
 
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